CN103502707B - Sealing member - Google Patents
Sealing member Download PDFInfo
- Publication number
- CN103502707B CN103502707B CN201280021913.0A CN201280021913A CN103502707B CN 103502707 B CN103502707 B CN 103502707B CN 201280021913 A CN201280021913 A CN 201280021913A CN 103502707 B CN103502707 B CN 103502707B
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- China
- Prior art keywords
- seal washer
- sealing member
- leg
- sealing
- load
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
- F16J15/3228—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip formed by deforming a flat ring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3244—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with hydrodynamic pumping action
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3268—Mounting of sealing rings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3284—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings characterised by their structure; Selection of materials
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Sealing With Elastic Sealing Lips (AREA)
- Gasket Seals (AREA)
- Bolts, Nuts, And Washers (AREA)
Abstract
The present invention relates to a kind of sealing member (1), it includes load-carrying ring (2) and seal washer (4), and described load-carrying ring is with axial leg (3)；Described seal washer (4) is placed or is arranged on load-carrying ring (2), and at outer periphery round axial leg (3).This sealing member (1) is characterised by, seal washer (4) extends over the free end (5) of axial leg (3), thus forms a protuberance (6).
Description
Technical field
The present invention relates to a kind of sealing member, this sealing member includes load-carrying ring and seal washer, described load-carrying ring with
Axially leg, described seal washer is placed or is arranged on load-carrying ring, and at outer periphery around axial leg.
It is more particularly related to it is a kind of for being arranged on shell or the aperture of similar encapsulation or similar opening
In sealing member, in order to this shell and the machine moved through described aperture or motor component (such as rotary shaft or
Person's axle) between provide seal.
Background technology
Prior art discloses the sealing member with seal washer, and it is equipped with by politef (PTFE)
The dynamic sealing lip of component composition.Generally, these sealing members include the static seal being made up of elastomeric material.
Making supporter be coated by elastomeric material by injection molding in this place, this material is shaped to obtain for being attached described
Dynamic sealing lip and the region of static seal.
Such as, WO-A-2008/009317 further discloses such sealing member: wherein by same attachment
, the seal washer being such as made up of PTFE component define static seal and dynamic sealing lip, this makes
It is the easiest to manufacture, and especially reduces cost.But, in reality, one that may be present has a problem in that:
When sealing member is installed in shell aperture, seal washer may disengage, and on the one hand this make installation process
On the other hand much more difficult and loaded down with trivial details may damage sealing member much, or due to during placing sealing member
The packing ring being in this level departs from so that the encapsulant of its outer periphery at least partly can not connect with hole wall
Touch.
Finally it is also known that there are some sealing members, especially document DE 10 2,006 034 056 and DE10 2006
059 398 sealing members disclosed, the axial leg of these sealing members has stacking or ladder configuration, with
Radially protruding part (at free end) and radial depressions portion.Seal washer is only only attached to the axial depression portion of leg,
The most substantially from ledge every impact.But, in this embodiment, the outer surface of axial leg is also
Covered by packing ring the most completely, between leg and receiving housing, there is no encapsulant.
Summary of the invention
The sealing member that it is an object of the invention to be previously mentioned Introductory part type improves, in Introductory part
The sealing member mentioned is such as described in the file WO-A-2008/009317, and this improvement makes to install the most square
Just, and advantageously, it is greatly reduced, even eliminates the risk that packing ring disengages from the axial leg of load-carrying ring.
This purpose is realized by a kind of sealing member, and this sealing member includes load-carrying ring and seal washer, described carrying
Annulus has axial leg；Described seal washer is placed or is arranged on described load-carrying ring, and is centered around described axle
To the outer periphery of leg.Wherein said seal washer extends over the free end of described axial leg, thus shape
Become protuberance.
In order to realize this predeterminated target, extend over the freedom of axial leg according to the seal washer of the present invention
End, thus form protuberance.Preferably, seal washer covers axial leg completely (it is to say, cover
Its outer peripheral surfaces), and prop up axial leg, seal washer is assembled into this by material bonding and axially props up
Foot.Assembled by means of the suitable binding being arranged between load-carrying ring and seal washer by what material bonding realized
Complete.
As, such as described in file WO-A-2008/009317, seal washer can be by executing
Plus-pressure is attached and is fastened on load-carrying ring, after laying binding agent, can heat and can not also heat (this
Depend on concrete binding agent).
In the case of not having protuberance, (it corresponds to form gap between seal washer and axial leg
By the visible edge of the assembling plane that binding is formed).During installation, according to sealing member and shell aperture
The diameter in footpath, has the biggest power to act on sealing member in a radial direction and an axial direction, acts on axle
Power on direction particularly can have the effect (sealing member making seal washer disengage by shearing from axial leg
On the free end direction of axial leg by axially introduced into).Therefore, sealing member may be damaged, or extremely
It is to weaken static sealing effect less.
Protuberance according to the application overcomes these shortcomings, makes installation more convenient extraly.
Particularly, this protuberance covers axial leg so that the power applied in the axial direction will not produce due to
Shear the effect that (separation) makes seal washer disengage from axial leg.This protuberance is preferably in central axis direction
It is bent radially inward.Thus in the region interior diameter reduction of this protuberance, this reduces sealing member in the mode of cutting sth. askew
Outer dia.On the one hand, this diameter reduces the effect achieving the center of assisting in, consequently facilitating (peace
During dress) sealing member location in shell aperture footpath and guiding.On the other hand, axial force in operation creates
Seal washer is made to prop up the effect of axial leg.It resists with shear stress so that seal washer is during installation
Will not disengage from load-carrying ring.Thus, this protuberance constitutes the leg of a frusto-conical in the circumferential, extremely
Small part covers the near zone of the end edge of axial leg, especially external margin.
Seal washer is preferably made up of politef (PTFE) component.In order to reduce creep tendency, PTFE
Component at least can be with fiber reinforcement in the region being connected with axial leg, such as glass fiber reinforcement.Due to
The static seal that PTFE makes has extremely low coefficient of friction, thus uses PTFE as static seal
Material reduce installing force.
Compared with tartan, PTFE has much lower elasticity.It has, however, been found that PTFE is just
It is still adapted to as static seal for itself.Mobile by elastic sealing element institute by local compression or expansion
The shape difference compensated, for by the static seal made by PTFE, is the local by this material
Migrate (that is by limited creep process) and be compensated.But, at the context of the present invention
In, creep process is preferably being maintained the prestressing force of static seal by local limit and is making sealing member with reliable side
Formula is fixed to the degree in shell aperture.
In order to ensure that sealing member is installed in aperture or the similar rigidity wedge shape in opening of receiving, and without using
Extra fastening or fixing means, and the static sealing condition of optimization is provided simultaneously, preferably load-carrying ring has HYS
The broad form of (high anti-yield strength), preferably its bending strength Re is: Re >=210N/mm2, anti-
Yield strength Rm is drawn to be: Rm >=350N/mm2, such as, meet the sheet material of HC 340 LA standard.Adopt
With such sheet material, (such as thickness is between 0.6mm to 1.2mm, preferably at 0.8mm to 1.0mm
Between), it is allowed to according to the sealing member of the present invention under conditions of firmly or with the presence of radial stress before installation
Put and meet above-mentioned requirement, ensured by the part being fastened on axial leg of compression seal packing ring
Static sealing (between ring and housing).
By the elasticity by means of the sheet material forming load-carrying ring, axial leg can further allow for such as due to temperature
Change and cause aperture or the change in size of opening formed on housing, ensure that in the different application stage
All can keep sealing.
In order to realize desired tight, the installation of Wedged, such as by described in the case of having pressure effect
Gasket applications (bonding, rolling), to period on described leg, is applied to the pressure on this leg by regulation,
(this part covers the whole of this axial leg to part on the axial leg being fastened to load-carrying ring of seal washer
Outer peripheral surfaces) thickness can be precisely adjusted, so that the outer dia of sealing member is than aperture or receiving
The inside diameter of opening goes out the most greatly a predetermined amount.
In the case of these close installation, the advantage of protuberance is installed more favourable and heavier for correct leakproof
Want.
In order to realize this tight, Wedged installation, can accurately be regulated the fastening of seal washer by pressure roll
The thickness of the part on the axial leg of load-carrying ring, such as by gasket applications on leg period, by adjust
The whole pressure being applied on this leg realizes.
During this rolling, the displacement of obtained material can be at least partially formed described protuberance.
Preferably, axial less than described packing ring and described ring of the thickness of gasket portion of squeeze sealing member is formed
The thickness of the part that leg engages, such as, the order of magnitude of its ratio is 0.7 to 0.8, preferably about 0.75,
This part order of magnitude that thickness reduces during rolling operation being equivalent to packing ring is 20% to 30%.
Sealing lip can be formed, to prop up machine element to be sealed, such as axle or rotary shaft by seal washer.Thus,
In this case, sealing member of the present invention only has two structural details: i.e. load-carrying ring and seal washer.
Seal washer can be assembled in sealing lip with repelling structure, as in screw thread or spiral fluted region.This row
Repelling structure stress with slight friction improves dynamic sealing effect.
Highlight the circle circle of the thread groove of the material thickness conformal repelling structure in a row of helical and change, it is advantageous to spiral shell
Wire material thickness is more than the thickness of the part engaged with the axially and radially leg of load-carrying ring respectively of seal washer
Degree.
Such as, the thickness of described protuberance is such as applied to the thickness of part of axial leg equal to seal washer
About 1.6 to 1.7 times.
Advantageously, repel structure and by the case of having pressure effect (rolling), packing ring can be applied to ring
Upper period carries out imprinting or molding and formed, such as schematic description and table in file WO 2008/009317
(see Fig. 4 and describe accordingly) as showing.
It addition, by the way of favourable, this repulsion structure can be had substantially triangular transversal by multiturn
The spiral slot in face is constituted.
This triangular cross section can have (edge relative to forming trench bottom) asymmetrical structure or profile,
So that it can in surprising mode, during rotating rotary shaft to be sealed or axle, according to asymmetric
The orientation of shape, it is provided that point to the side in both sides or sensing will be with in two environment of leak-proof manner isolation
The repulsion action of an environment.
According to another configuration or in additional mode, dust excluder lips can be formed from seal washer.This dust excluder lips is being wanted
The side of the machine element sealed axially upwardly stretches out, but does not ride on this machine element.When seal washer by
When PTFE component is constituted, this dust excluder lips itself can also be made up of PTFE component.
In a variant, by described seal washer is isolated and can shape, be formed from seal washer
Sealing lip and dust excluder lips.
According to another feature, radially leg may be connected to the axial leg of load-carrying ring, and seal washer can
To cover the side contrary with axial leg of this radial direction leg.So, seal washer just covers load-carrying ring
Side.When corrosive liquids is applied to the side that load-carrying ring is covered by seal washer, this is particularly advantageous.
The seal washer being made up of PTFE component can resist multiple corrosive liquids.
The additional seal washer being formed sealing lip by it can be placed on load-carrying ring.Here advantage
It is can be according to the purposes optimized choice seal washer of each of which and the material of additional seal packing ring.Thus, close
Seal washer can be and additional close by having the lowest creep tendency and the material of adhesion characteristics improved be constituted
Seal washer then can be made up of the material of the coefficient of friction with reduction.
Seal washer can be placed on the side contrary with axial leg of radially leg, and additional seal packing ring
Then can be placed on the radial direction leg side towards axial leg.By this configuration, every at radial direction leg
A seal washer all can be placed on side.When the material of two seal washers is the most incompatible, this is special
The most favourable.
Seal washer and additional seal packing ring all can be placed on contrary with axial leg of radially leg
Side.By this configuration, the two seal washer is placed at the same side.Here at least one sealing gasket
Circle covers another seal washer at least in part, thus simplifies fastening, because the seal washer of outside is interior
The seal washer in portion provides additional fastening.This configuration is also advantageous for installing, because being formed
That seal washer having sealing lip is upwarded pressure by from load-carrying ring side during installation, because of without pine
De-.According to a kind of additional configuration, seal washer can cover additional seal packing ring subsequently at least in part.?
Under this configuring condition, dynamic sealing lip is formed from additional seal packing ring.Additional seal packing ring is especially may be used
The mode leaned on is fastened, because the side of this additional seal packing ring is secured to load-carrying ring, opposite side is formed with
The seal washer of dust excluder lips covers.
Seal washer can be covered by the element of a beadlike form at least in part.Dust excluder lips can be by this element shape
Become.Here, this element can be made up of various different materials: it is contemplated that material include elastomeric material or gold
Belong to material, the packing ring being made up of plastics or nonwoven cloth material.
Accompanying drawing explanation
The several exemplary embodiments of sealing member according to the present invention will be explained in greater detail below by accompanying drawing,
These exemplary embodiments are as the possible embodiment of the present invention, and are not intended as limiting, to show in accompanying drawing
The mode of meaning property shows:
Fig. 1 shows the sealing member with seal washer when installing by sectional view；
Fig. 2 is shown with seal washer and the sealing member of additional seal packing ring by sectional view；
By sectional view, Fig. 3 is shown in which that seal washer covers the sealing member of additional seal packing ring；
Fig. 4 is shown with seal washer and the sealing member of the element of beadlike form by sectional view；
Fig. 5 shows the sealing member of type same as shown in Figure 1 by sectional view, and wherein seal washer has spy
Different shape；
Fig. 6 A is to form office's figure view of the end of the sealing lip of sealing member shown in Fig. 5；
Fig. 6 B is the detail view of the different proportion of a part of sealing lip shown in Fig. 6 A；
Fig. 7 shows the sealing member of the variant constituting embodiment illustrated in fig. 1 by sectional view；
Fig. 8 shows the equipment for manufacturing sealing member 1 as shown in Figure 1 by sectional view.
Detailed description of the invention
The sealing member 1 according to the present invention is shown with the form of different variants in Fig. 1 to Fig. 5 and Fig. 7.
Thus, Fig. 1 shows the sealing member 1 for sealing the housing bore 12 in shell 13.This sealing member 1
Having the load-carrying ring 2 being made up of metal material, this load-carrying ring 2 is with axial leg 3.Sealing member 1 is additionally also
Having the seal washer 4 being made up of PTFE component, this seal washer is placed on load-carrying ring 2, and outside
Portion's periphery is round axial leg 3.Radially leg 10 is connected to the axial leg 3 of load-carrying ring 2, and close
Seal washer 4 covers the side contrary with axial leg 3 of radially leg 10.Seal washer 4 is glued by material
Close, be assembled on load-carrying ring 2 by one layer of binding.Seal washer 4 is configured such that it extends over
The axially free end 5 of leg 3, thus form a protuberance 6.This protuberance 6 in central axis direction radially
Curve inwardly, cause diameter to reduce.Formed sealing lip 7 by way of parenthesis by this seal washer, be used for propping up and to seal
Machine element 8.This sealing lip 7 is threaded the repulsion structure 14 of form.
Fig. 2 shows a sealing member 1, and it has the load-carrying ring 2 being made up of plastic material, and this load-carrying ring 2 carries
There is axial leg 3.Sealing member 1 additionally also has the seal washer 4 being made up of PTFE component, this sealing gasket
Circle is placed on load-carrying ring 2, and at outer periphery round axial leg 3.Seal washer 4 passes through material
Bond, be assembled on load-carrying ring 2 by one layer of binding.It is super that seal washer 4 is configured such that it stretches out
Cross the free end 5 of axial leg 3, thus form a protuberance 6.This protuberance 6 is radial direction in central axis direction
Curve inwardly, cause diameter to reduce.Dust excluder lips 9 is formed by seal washer 4.One additional seal packing ring 11
It is placed on the side contrary with seal washer 4 of load-carrying ring 2, say, that be placed on radially leg
10 towards on the side of axial leg 3.This additional seal packing ring 11 is also made up of PTFE component itself.
Sealing lip 7 is formed by this additional seal packing ring 11.This sealing lip 7 is threaded the repulsion structure 14 of form.
Fig. 3 shows that the sealing member 1 according to Fig. 2, seal washer 4 and additional seal packing ring 11 are all placed
In the side contrary with axial leg 3 of radial direction leg 10, seal washer 4 covers additional encryption at least in part
Seal washer 11.
Fig. 4 shows the sealing member 1 according to Fig. 1, and the element 15 of a beadlike form partly covers sealing
Packing ring 4, and it is fixed to seal washer 4 in the side contrary with radial direction leg 10.Formed by this element 15
Dust excluder lips 9, and this element is made up of non-woven fabrics.
Fig. 5 shows the sealing member 1 identical with Fig. 1 or Fig. 4 shown type (the most by way of parenthesis
There is dust excluder lips 9), each identical building block is denoted by the same reference numerals.
Fig. 5 more clearly shows: seal washer 4 part 4 ' combined with axial leg 3 can have adjustment
After thickness, the part that especially its thickness is combined with the radial direction leg 10 of described ring less than described packing ring 4
4 " thickness.
Particularly, the thickness A of part 4 ' can be the order of magnitude of 0.75B, and wherein B is part 4 " thickness.
Similarly, the thickness A of part 4 ' is less than the thickness C of the prominent circle circle 15 ' repelling structure 14, described
Prominent circle circle 15 ' alternately forms groove 15 with depression circle circle.
Valuably, can generally prove that thickness A and thickness C have following relationship: A=0.6C.
In the case of there is no stress and close for be arranged in the circular receiving opening 12 of cylinder
For sealing 1, axial leg 3 has advantageously generated one and has shown slightly Frusto-conical sleeve pipe, and it is at described
In horn-like on the free end direction of foot 3.Advantageously, horn flare angle can between 0.5 ° to 5.0 °,
The sealing member 1 overall diameter in the position at a right angle relative to radial direction leg 10 is essentially equal to opening or aperture
The interior diameter of 12.
So, sealing member 1 is installed in opening 12 by the elastic bending stress at leg 3, thus really
Protect lock into place, and cover the part inwall applying pressure relative to opening 12 of leg 3 at seal washer 4
Guarantee in the case of power to apply reliably.
As shown in the most in Figure 5, according to a favourable feature of the present invention, sealing lip 7 can have screw thread
The repulsion structure 14 of form, its have with the different relative flanks 14 ' of gradient, 14 " groove 15, best
With the most asymmetrical triangular cross section or profile.In cross-section, this groove 15 can include
One flank or side 14 ' and the second flank or side 14 ", when described sealing lip 7 props up machine to be sealed
During element 8, relative to load plane PA, described first flank or side 14 ' are with less slope inclination, institute
State the second flank or side 14 " with bigger slope inclination.
Preferably, sealing member 1 is being placed in the aperture 12 for receive this sealing member and is making sealing lip
After 7 prop up machine element 8, form the first flank 14 ' court of the circle circle of the groove 15 of described repulsion structure 14
External environment ME is orientated, and the second flank 14 " towards internal medium MI orientation to be sealed.
Such repulsion structure is shaped such that can provide the preferably row having towards environment orientation to be sealed
Scold the dynamic seal (packing) in direction.
Fig. 6 A and 6B shows of the groove 15 forming repulsion structure 14 in the way of non-limiting example
Possible practical embodiments.
Sealing lip 7 relative to the inclined angle alpha of plane PA in the case of there is no stress can 15 ° to 75 ° it
Between.
Have the groove 15 of triangular cross section open angle beta (i.e. by the first flank 14 ' and the second flank 14 " institute
The angle formed) can be between 60 ° to 120 °.
Additionally, the pitch P forming the helix repelling structure can be between 0.2mm to 1.0mm, and groove
Degree of depth h of 15 (between each circle circle of groove distance) between bottom and the top of projection 15 ' of groove 15 is permissible
Between 0.05mm to 0.5mm.
Fig. 7 shows a variant embodiments of sealing member 1 shown in Fig. 1, wherein, by forming described pad
The part of the internal edge of circle 4 carries out suitable segmentation and shaping so that sealing lip 7 and dust excluder lips 9 are by same
One seal washer 4 is formed.
Fig. 8 schematically shows the equipment for manufacturing sealing member 1 as shown in Figure 1, tool by sectional view
For body, from the beginning of the load-carrying ring 2 with l-shaped cross section and seal washer 3.Those skilled in the art can
To be understood by, in Guan Bi mould (two parts 17 and 17 ' are combined together) period, on the one hand by making
Extend over the protuberance of the radially internal edge of leg 10, on the other hand make repulsion structure 14 same on lip 7
One-step forming, thus packing ring 4 is wrapped on ring 2.
Certainly, the present invention is not limited to embodiment that is described in the accompanying drawings and that represent.Change can be made, especially
It is from the viewpoint of constituting different key element, or is replaced by technical equivalents, without departing from the present invention's
Protection domain.
Claims (19)
1. a sealing member (1), described sealing member can be used in being joined to the opening in housing (13) or hole
(12), in, described sealing member is formed by both load-carrying ring (2) and seal washer (4), described load-carrying ring (2)
With axial leg (3) and the radial direction leg (10) that is connected to described axial leg (3)；Described sealing gasket
Circle (4) is placed or is arranged on described load-carrying ring (2), is centered around the outside of described axial leg (3)
Periphery and cover the side contrary with described axial leg (3) of described radial direction leg (10)；Described close
The part (4 ') covering described axial leg (3) of seal washer (4) is for against described opening or hole (12)
Inwall, in order between described sealing member (1) and housing provide seal, described sealing member is characterised by,
Described seal washer (4) extends over the free end (5) of described axial leg (3), thus is formed prominent
Portion (6), described protuberance (6) is bent radially inward in central axis direction, and described protuberance (6) is in week
To the leg of composition frusto-conical, at least partly cover the edge of the free end of described axial leg (3).
2. sealing member as claimed in claim 1, it is characterised in that described protuberance (6) covers described axle
Near zone to the external margin of the free end (5) of leg (3).
3. sealing member as claimed in claim 1 or 2, it is characterised in that described seal washer (4) is by gathering
Tetrafluoroethene (PTFE) forms.
4. sealing member as claimed in claim 1 or 2, it is characterised in that described seal washer (4) is formed
Sealing lip (7), to prop up machine element (8) to be sealed.
5. sealing member as claimed in claim 1 or 2, it is characterised in that described seal washer (4) is formed
Dust excluder lips (9).
6. sealing member as claimed in claim 1 or 2, it is characterised in that put on described load-carrying ring (2)
Putting additional seal packing ring (11), this additional seal packing ring (11) forms sealing lip (7).
7. sealing member as claimed in claim 6, it is characterised in that described additional seal packing ring (11) quilt
It is placed on the side towards described axial leg (3) of described radial direction leg (10).
8. sealing member as claimed in claim 6, it is characterised in that described seal washer (4) and described attached
Add seal washer (11) and be placed on the contrary with described axial leg (3) of described radial direction leg (10)
On side.
9. sealing member as claimed in claim 8, it is characterised in that described seal washer (4) is at least part of
Cover described additional seal packing ring (11).
10. sealing member as claimed in claim 1 or 2, it is characterised in that described seal washer (4) is extremely
Partially covered by the element (15) of beadlike form.
11. sealing members as claimed in claim 10, it is characterised in that the element (15) of described beadlike form
Dust excluder lips (9) is formed by making its free end point to machine element (8).
12. sealing members as claimed in claim 1 or 2, it is characterised in that by described seal washer (4)
The isolation of inside end part and shaping, described seal washer (4) forms sealing lip (7) and dust excluder lips (9).
13. sealing members as claimed in claim 10, it is characterised in that by described seal washer (4)
The isolation of inside end part and shaping, described seal washer (4) forms sealing lip (7) and dust excluder lips (9).
14. sealing members as claimed in claim 1 or 2, it is characterised in that described load-carrying ring (2) is by HYS
The sheet material of type is made.
15. sealing members as claimed in claim 1 or 2, it is characterised in that described seal washer (4) group
Being loaded on the thickness after the part (4 ') of axial leg (3) has adjustment, the thickness after described adjustment is less than institute
State the part (4 ") that seal washer (4) is assembled in the radial direction leg (10) of described load-carrying ring.
16. sealing members as claimed in claim 3, it is characterised in that described sealing lip (7) has spiral
The repulsion structure (14) of shape or screw thread form, described repulsion structure (14) has with different gradients or oblique
The groove (15) of the relative flank at angle (14 ', 14 ").
17. sealing members as claimed in claim 16, it is characterised in that described groove (15) is with generally
Asymmetrical triangular cross section or profile.
18. sealing members as claimed in claim 16, it is characterised in that described groove (15) has the first side
The wing or side (14 ') and the second flank or side (14 "), when described sealing lip (7) props up and to seal
Machine element (8) time, relative to load plane (PA), described first flank or side (14 ') are with relatively
Little slope inclination, and described second flank or side (14 ") with bigger slope inclination.
19. sealing members as claimed in claim 18, it is characterised in that described sealing member (1) is being placed
To after receiving in the aperture (12) of this sealing member and making sealing lip (7) prop up machine element (8),
Formed described repulsion structure (14) groove (15) circle circle the first flank (14 ') towards external environment condition (ME),
And the second flank (14 ") towards internal medium (MI) to be sealed.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP11006381.5 | 2011-08-03 | ||
| EP11006381.5A EP2554878B1 (en) | 2011-08-03 | 2011-08-03 | Seal |
| PCT/FR2012/050239 WO2013017755A1 (en) | 2011-08-03 | 2012-02-03 | Seal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103502707A CN103502707A (en) | 2014-01-08 |
| CN103502707B true CN103502707B (en) | 2016-08-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280021913.0A Active CN103502707B (en) | 2011-08-03 | 2012-02-03 | Sealing member |
Country Status (5)
| Country | Link |
|---|---|
| EP (2) | EP2554878B1 (en) |
| JP (1) | JP5933715B2 (en) |
| CN (1) | CN103502707B (en) |
| RU (1) | RU2559101C1 (en) |
| WO (1) | WO2013017755A1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3018575B1 (en) | 2014-03-12 | 2018-04-20 | Carl Freudenberg Kg | DOUBLE SEALING DEVICE FOR ROTARY SHAFT AND PUMP COMPRISING SUCH A DEVICE |
| FR3047065A1 (en) | 2016-01-25 | 2017-07-28 | Freudenberg Carl Kg | ANGULAR DETECTION DEVICE WITH PROTECTION AGAINST EXTERNAL CONTAMINANTS |
| FR3047533B1 (en) | 2016-02-09 | 2018-07-13 | Carl Freudenberg Kg | IMPROVED SEALING DEVICE, IN PARTICULAR WITH RESPECT TO CONTAMINATION BY EXTERNAL AGENTS |
| RU183878U1 (en) * | 2018-04-16 | 2018-10-08 | Акционерное общество "Резинотехника" | Sealing cuff |
| IT201900016034A1 (en) * | 2019-09-11 | 2021-03-11 | Skf Ab | SEALING DEVICE IN PARTICULAR FOR SHOCK ABSORBER STEMS |
| DE102021113901A1 (en) * | 2021-05-28 | 2022-12-01 | Carl Freudenberg Kg | Arrangement for producing an electrically conductive connection between a first machine element and a second machine element |
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| EP0347587A2 (en) * | 1988-06-24 | 1989-12-27 | GOETZE Elastomere GmbH | Shaft sealing ring |
| US5147494A (en) * | 1989-07-28 | 1992-09-15 | Keeper Co., Ltd. | Seal device for tire pressure-adjusting device |
| GB2258275A (en) * | 1991-07-27 | 1993-02-03 | Dowty Seals Ltd | A shaft seal |
| US5209502A (en) * | 1992-06-23 | 1993-05-11 | Mather Seal Company | Dual lip seal and method of forming the seal |
| CN1853063A (en) * | 2003-09-19 | 2006-10-25 | Nok株式会社 | Sealing device |
| CN101490452A (en) * | 2006-07-20 | 2009-07-22 | 卡尔弗罗伊登柏格两合公司 | Seal |
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| DE3402366A1 (en) * | 1984-01-25 | 1985-08-01 | Kaco Gmbh + Co, 7100 Heilbronn | Radial shaft sealing ring and a method for its manufacture |
| DE3631887C1 (en) * | 1986-09-19 | 1988-02-04 | Goetze Ag | Lip sealing ring |
| DE19733554A1 (en) * | 1997-08-02 | 1999-02-18 | Freudenberg Carl Fa | Radial shaft seal |
| US6830641B2 (en) * | 2001-08-13 | 2004-12-14 | Saint-Gobain Performance Plastics Corporation | Method of making a seal formed from polymer laminated metallic constructions |
| CN1306193C (en) * | 2002-02-15 | 2007-03-21 | 卡尔·弗罗伊登伯格公司 | Sealing ring |
| DE202004004317U1 (en) * | 2004-03-12 | 2005-07-28 | Dichtungstechnik G. Bruss Gmbh & Co. Kg | Radial shaft sealing ring comprises a sealing lip which is provided with a coating agent which is transformed into a solution or a suspension as a result of a contact with the medium to be sealed |
| CN2818933Y (en) * | 2005-08-24 | 2006-09-20 | 徐利阳 | Teflon labiate sealed ring of rotation axis |
| DE102006059398B4 (en) | 2006-12-08 | 2015-10-15 | Kaco Gmbh + Co. Kg | poetry |
| JP2008169933A (en) * | 2007-01-12 | 2008-07-24 | Nok Corp | Sealing device |
| JP2009144822A (en) * | 2007-12-14 | 2009-07-02 | Nok Corp | Oil seal |
| CN102362108B (en) * | 2009-01-28 | 2014-08-20 | 费德罗-莫格尔公司 | Radial shaft seal, radial shaft seal assembly and method of installation |
| CN201496551U (en) * | 2009-07-30 | 2010-06-02 | 青岛海力威密封有限公司 | Polytetrafluoroethylene oil seal |
| DE102009035802A1 (en) * | 2009-07-31 | 2011-02-03 | Carl Freudenberg Kg | poetry |
| CN201531602U (en) * | 2009-09-21 | 2010-07-21 | 哈尔滨东安实业发展有限公司 | Perfluoroethylene oil-sealing device without dust prevention |
| CN201636333U (en) * | 2010-04-06 | 2010-11-17 | 浙江欧福密封件有限公司 | Rotary shaft lip seal |
| EP2397726B1 (en) * | 2010-06-17 | 2013-01-16 | Carl Freudenberg KG | Method for manufacturing a seal |
-
2011
- 2011-08-03 EP EP11006381.5A patent/EP2554878B1/en active Active
-
2012
- 2012-02-03 EP EP12707636.2A patent/EP2739885B1/en active Active
- 2012-02-03 CN CN201280021913.0A patent/CN103502707B/en active Active
- 2012-02-03 RU RU2013150778/06A patent/RU2559101C1/en active
- 2012-02-03 JP JP2014523357A patent/JP5933715B2/en active Active
- 2012-02-03 WO PCT/FR2012/050239 patent/WO2013017755A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0347587A2 (en) * | 1988-06-24 | 1989-12-27 | GOETZE Elastomere GmbH | Shaft sealing ring |
| US5147494A (en) * | 1989-07-28 | 1992-09-15 | Keeper Co., Ltd. | Seal device for tire pressure-adjusting device |
| GB2258275A (en) * | 1991-07-27 | 1993-02-03 | Dowty Seals Ltd | A shaft seal |
| US5209502A (en) * | 1992-06-23 | 1993-05-11 | Mather Seal Company | Dual lip seal and method of forming the seal |
| CN1853063A (en) * | 2003-09-19 | 2006-10-25 | Nok株式会社 | Sealing device |
| CN101490452A (en) * | 2006-07-20 | 2009-07-22 | 卡尔弗罗伊登柏格两合公司 | Seal |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2554878A1 (en) | 2013-02-06 |
| EP2739885A1 (en) | 2014-06-11 |
| JP5933715B2 (en) | 2016-06-15 |
| WO2013017755A1 (en) | 2013-02-07 |
| EP2554878B1 (en) | 2016-07-13 |
| JP2014521899A (en) | 2014-08-28 |
| EP2739885B1 (en) | 2016-08-24 |
| RU2559101C1 (en) | 2015-08-10 |
| CN103502707A (en) | 2014-01-08 |
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